OX-TRAN 2/22 OTR Analyzer

The OX-TRAN 2/22 series of high-performance analyzers can test the Oxygen Transmission Rate (OTR) on both films and packages from low to very high-level barriers. The oxygen permeation analyzers for packages and films are easy to use and offer the shortest test times available in the market. They feature 2 independent cells with changeable horizontal test cartridges that allow a wide variety of sample sizes and types to be easily and accurately tested.

Highest Accuracy

  • Patented Coulox® sensor is the only absolute Coulometric sensor on market, never requiring calibration
  • Lowest detection levels of any instrument available down to 0.0005 cc/(m2*day) (10X model)
  • Fully automated temperature, flow and RH controls simplify testing and provide unparalleled repeatability

Best Throughput

  • Industries fastest sensor response time allows shorter overall test times
  • Removable test cartridges allow fast easy sample preparation
  • Automated test method can start a test by a single press of a button
  • TruSeal gas flushed perimeter sealing can eliminate the need for individual zero in many tests thus shortening overall test times

The 2/22 Series use MOCON’s patented Coulox absolute (intrinsic) coulometric sensor requires no calibration and is the base for the ASTM standard D3985. It is the only instrument family proven to meet its precision and bias requirement through independent and 3rd party testing.


This family of highly accurate instruments has 3 models each having a different factor of lower detection limits.

  • H Model (common barriers) - the most popular detection range from 0.05 to 200 cc/(m2*day)
  • L Model (high barriers) - is able to achieve a factor of 10 lower than the H Model providing a range from 0.005 to 200 cc/(m2 * day)
  • 10X Model (ultra-high barriers) – has the industry’s lowest detection level at 100 times lower than the H model providing a range from 0.0005 to 200 cc/(m2*day).

Their upper detection limit of 200 cc/(m2*day) can be extended with any of the models with the use the reduced area film test cartridge (factor x9), atmospheric oxygen in place of the normal 100% O2 (factor of 4.8) or various size masking. The series has industry leading features such as removable and interchangeable horizontal test cartridges, easy to use touch screen operator interface, and fully automated testing providing higher throughput in the lab.

For more than 25 years, MOCON’s OX-TRAN series of instruments have been the most trusted and longest lasting on the market. From simple single layered barriers to complex multi-layered barriers, the OX-TRAN 2/22 series is the right choice.

Removable Cartridges
  • Easy sample prep on the benchtop
  • One button release and loading
  • Pneumatic clamping provides more repeatable results
  • Interchangeable cartridge options extend the range and flexibility of the analyzer without tools while maintaining arcuate results
  • Cartridge options include: Reduced area to extend testing range without masks, improved accuracy testing of paper-based barriers, adaptors for remote testing of packages or extreme conditions, and custom designs for unique testing requirements.
  • Gas flush of sample mounting seal protects chamber integrity
  • Lowers background level reducing need to run individual zero
  • Shortened testing time increases throughput
  • More repeatable results
Control Features
  • Fully automated flow, temp, & RH control throughout tests
  • Automatic test method development and recommendations
  • Programmable multi-test sequencing
  • Final test report printing and export
  • Built-in sensor protection
Touchscreen Interface
  • Intuitive automated operation requires less training
  • Built in multi-level user management and data security
  • Event log & trouble shooting guide
  • Save on valuable lab space by eliminating need for PC
Coulox® Sensor
  • Short exam times reduces overall test time to increase throughput
  • No sensor calibration required
  • Longer sensor life than others on the market
  • More accurate and repeatable results vs. sensors that require calibration
  • Intrinsic coulometric sensor fully complies with ASTM D3985
  • Full 100% parts and workmanship warranty for 12 months
  • Exclusive 4-year warranty on the Coulox sensor
  • OX-TRAN 2/22 H
  • OX-TRAN 2/22 L
  • OX-TRAN 2/22 10X
Capabilities - Model Specific


Model 10x

Model L

Model H

Test Ranges (50 cm2)

cc/(m2 × day)

0.0005 to 200

0.005 to 200

0.05 to 200

cc/(100 in2 × day)

0.00003 to 12.9

0.0003 to 12.9

0.003 to 12.9

cc/(pkg × day)

0.0000025 to 1.0

0.000025 to 1.0

0.00025 to 1.0

Test Ranges (5.6 cm2)

cc/(m2 × day)

0.0044 to 1770

0.044 to 1770

0.44 to 1770

cc/(100 in2 × day)

0.00027 to 114.0

0.0027 to 114.0

0.027 to 114.0

cc/(pkg × day)

0.000025 to 9.0

0.00025 to 9.0

0.0022 to 9.0

Test Ranges (5.0 cmmasked) cc/(m2 x day)  0.005 to 2000    0.05 to 2000  0.5 to 2000 
Resolution (50cm2 cc/(m2 × day) 0.0001   0.0001  0.0001 


cc/(m2 × day)

0.0005 or 1%*

0.002 or 1%*

0.02 or 1%*

*whichever is greater

Capabilities - All Models

Ox-Tran 2/22 Series


Test Temperature Range

10° to 40°C ± 0.2°C

Controlled RH Testing Range

0 to 90% ± 3%

Film Size

4” x 4” Std, 2”x2” optional

Film Thickness

Up to 120 Mil

Film Test Area

50 cm2 std, Option to 5.6 cm2

Other Specifications (all models):

Physical Specifications

  • 5.5” H x 12” W x 23” D (39.4 cm x 30.4 cm x 58.0 cm)
  • 95 Lbs. (43.1 kg)

Electrical Requirements

  • Voltage: 100 - 240 VAC 50/60 Hz
  • Maximum Power Draw: 700 VA
Laboratory Requirements



22 °C ± 2 °C


10 °C to 30 °C



20% to 80% RH (non-condensing)


5% to 85% RH (non-condensing)

Gas Supply Requirements

Carrier Gas

Gas Composition

Nitrogen/Hydrogen Mix (98%/2%)

Supply Pressure, Nominal

25 PSI, (1.72 Bar), (172 kPa)

Test Gas

Gas Composition

100% Oxygen (purity 99.9%)

Supply Pressure, Nominal

25 PSI, (1.72 Bar), (172 kPa)

  • Remote Access and Control (requires optional Perm-Net Light software)
  • Standard Ethernet port (100T)
  • Dual USB 2.0 ports (for connection of keyboard, mouse or memory devices)
Compliance Standards

This product is UL and CSA listed using the ETL mark from Intertek Group plc. and is certified to conform to CE.

Conforms to the following internationally recognized safety standards.

  • IEC 61010-1:2010 Third Edition
  • UL 61010-1:2012 Third Edition
  • CAN/CSA-C22.2 No. 61010-1:2012 Third Edition

Conforms to the following internationally recognized EMC standards.

  • EN 61326-1:2013
  • EN 61000-3-2:2006, A1:2009, A2:2009
  • EN 61000-3-3:2013

Conforms to EU Directive 2011/65/EU RoHS Compliance.

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